Remove redundant specs
Remove redundant specs

* They incur a large time overhead for a very minimal gain

sgarciac/spec,nobu/rubyspec,eregon/rubyspec,nobu/rubyspec,ruby/spec,nobu/rubyspec,ruby/rubyspec,sgarciac/spec,ruby/spec,sgarciac/spec,eregon/rubyspec,ruby/rubyspec,ruby/spec,eregon/rubyspec